$F8D0/63696: Check Tape Stop
Jump from $F821, $F8C7:
F8D0: 20 E1 FF JSR $FFE1 ; Test-Stop Vector
F8D3: 18 CLC
F8D4: D0 0B BNE $F8E1
F8D6: 20 93 FC JSR $FC93 ; Restore Normal IRQ
F8D9: 38 SEC
F8DA: 68 PLA
F8DB: 68 PLA
Jump from $F86E, $F8C5:
F8DC: A9 00 LDA #$00
F8DE: 8D A0 02 STA $02A0 ; Temp. store for IRQ Vector during Tape I/O
Jump from $F8D4:
F8E1: 60 RTS
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